CR2032 Stainless Steel Coin cell component setsStainless Steel CR2032 Coin cell cases each with dimension of 20 mm diameter and 3. 2 mm thickness. Negative plate has incorporated insulated O ring inside. This eliminates the need for additional O ring insertion process. Each set includes positive and negative cups, spacer and spring washer. Diameter: 20 mm Thickness: 3. 2 mm Weight: 2g each set Material: Stainless Steel O ring: Incorporated with Negative Quantity: 100 sets Application: Lithium